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Adding headers to requests module

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How do you add a header to a request in Python?

To add HTTP headers to a request, you can simply pass them in a dict to the headers parameter. Similarly, you can also send your own cookies to a server using a dict passed to the cookies parameter.

How do you send a HTTP request with a header in Python?

HTTP headers let the client and the server pass additional information with an HTTP request or response. All the headers are case-insensitive, headers fields are separated by colon, key-value pairs in clear-text string format.

Can I add custom header to HTTP request?

In the Home pane, double-click HTTP Response Headers. In the HTTP Response Headers pane, click Add... in the Actions pane. In the Add Custom HTTP Response Header dialog box, set the name and value for your custom header, and then click OK.


From http://docs.python-requests.org/en/latest/user/quickstart/

url = 'https://api.github.com/some/endpoint'
payload = {'some': 'data'}
headers = {'content-type': 'application/json'}

r = requests.post(url, data=json.dumps(payload), headers=headers)

You just need to create a dict with your headers (key: value pairs where the key is the name of the header and the value is, well, the value of the pair) and pass that dict to the headers parameter on the .get or .post method.

So more specific to your question:

headers = {'foobar': 'raboof'}
requests.get('http://himom.com', headers=headers)

You can also do this to set a header for all future gets for the Session object, where x-test will be in all s.get() calls:

s = requests.Session()
s.auth = ('user', 'pass')
s.headers.update({'x-test': 'true'})

# both 'x-test' and 'x-test2' are sent
s.get('http://httpbin.org/headers', headers={'x-test2': 'true'})

from: http://docs.python-requests.org/en/latest/user/advanced/#session-objects